Secrets Generator
Generate cryptographically random secrets in the formats developers reach for, from hex keys and base64url tokens to Rails and Django secrets, entirely in your browser.
Secret Options
A run of random bytes rendered as lowercase hexadecimal, which is the format most tools accept for keys and salts.
Every value is generated in your browser with the Web Crypto random number generator, and nothing is transmitted or stored. If you need a version 4 UUID instead, the UUID Generator covers that.
Generated Secret
Generating a secret...
Entropy: 0 bitsLength: 0 characters
Entropy measures how much randomness the value carries. Anything at 128 bits or above is considered strong for keys and tokens, and the framework presets here all sit well past that mark.
Free developer tools by Clocktower and Associates. All processing happens in your browser: no data is collected or transmitted.